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Finding the Fourth Proportional to 491,555.40, 738,110.70 and 359,363.40

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Solution

The fourth proportional to 491,555.40, 738,110.70 and 359,363.40 is: 539,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,555.40 : 738,110.70 = 359,363.40 : x
  2. Step 2: Convert to fraction form
    491,555.40/738,110.70 = 359,363.40/x
  3. Step 3: Cross multiply
    491,555.40x = 738,110.70 × 359,363.40
  4. Step 4: Simplify right side
    491,555.40x = 265,249,970,728.38
  5. Step 5: Solve for x
    x = 265,249,970,728.38/491,555.40
  6. Step 6: Final answer
    x = 539,613.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.